i can manage fine when the coefficient of x is 1 but when it becomes more than that i start to struggle e.g. 4x etc.
asked Jul 31, 2012 in Algebra 1 Answers by anonymous

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4x^2+12x+9

you need to find a and b such that

ab=4*9=36  and  a+b=12

Here a=b=6  works

4x^2+6x+6x+9

=2x(2x+3) +3(2x+3)

=(2x+3)(2x+3)

=(2x+3)^2
answered Jul 31, 2012 by soudhamini Level 5 User (14,740 points)
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